Sanyo LC573914 Specifications

Ordering number : ENN*6745

CMOS IC

LC573914

4-Bit Microcontroller

with 4K-Byte ROM, 128

Preliminary Overview

The LC573914 is a CMOS 4-bit microcontroller that operates on low voltage and very low power consumption. It also contains 4K-byte ROM, 128 × 4 bits RAM, LCD drivers and melody function.

Features

(1) ROM :4096 × 8 bits

(2) RAM :128 × 4 bits

(3) Cycle Time

Cycle Time Oscillation source Oscillation frequency Power supply voltage Power source

21µs RC oscillation 190kHz 1.20 - 1.65V Ag Battery

(4) Input / Output Terminals

- Input ports : 4 terminals (S-port : 4 terminals)

- Input / Output ports : 8 terminals (P0 port : 4 terminals, P1 port : 4 terminals) [Notes] When using the P1 port for output, the “L” level hold Tr. of P1 should be OFF.

If P1 port becomes “H” level with “L” level hold Tr. on, it causes the through current from VDD to GND and increases the current consumption.

- Output ports : 2 terminals (Buzzer / melody output terminal : 1 terminal, General output port : 1 terminal)

- LCD segment output ports : 32 terminals (Possible to use output port by mask option)

- LCD common output ports : 4 terminals

××××

4Bits RAM and LCD Driver

Ver.0.92 61198

91400 RM (IM) HO No.6745-1/13

LC573914

(5) LCD driver

Drivable LCD panel Number of drivable LCD segment output

1/2 bias 1/4 duty 128 segments 1/2 bias 1/3 duty 96 segments 1/2 bias 1/2 duty 64 segments

STATIC 32 segments

(Possible to use output port by mask option.)

- Built-in Step-up / Step-down circuit

(6) Melody/Buzzer

- Melody function Octave : 3 octaves Time of musical note : specified by program [Note] The melody scale is set on the assumption that crystal oscillator is used.

The scale setting might slide when RC oscillator is used.

- Buzzer output

(7) Base timer

- 15-bit base timer for timekeeping [Note] When RC oscillator is used, the RC oscillation becomes the source clock of base timer, and the clock operation

can not be used on this oscillation.

(8) HALT release

- Five vec t ors

1. 15-bit base timer

2. 15-bit base timer

3. S-port

4. P1-port

5. 1/10 second pulse [Note] The time interval to release the HOLD mode of 1, 2 and 5 (indicated avobe) depend on the frequency of RC

oscillation.

(9) Stand-by mode

- HALT mode

The program operation will be stopped in this mode. This mode is released by system reset and 5 vectors for HALT release above-mentioned.

(10) System reset

- RES terminal

- Reset by setting S1 to S4 terminals to “H” level simultaneously.

(The reset with switch S is enabled / disabled by mask option.)

(11) Oscillation

- RC oscillation [Note] When RC oscillator is used, RCOUT terminal and OSCIN terminal have to connected externally.

(12) Power supply

- Ag-battery : VDD1-VSS=1.20V to 1.65V, Step-up voltage (VDD2-VSS=2.4V to 3.3V)

(13) Shipping form

- Bare chip, QFP64

(14) The development tool

- Evaluation chip : LC5797

- Emulator : EVA520 + TB5739 + DCB-1A

No.6745-2/13

- When RC oscillation is used, the LCD display has to be turned off by program control before the RC oscillation is stopped.

- The state of LCD display (all turned on / all turned off / display unknown) at reset can be selected by mask option.

Pad assignment

Chip size (X × Y) : 2.6 3mm × 2.89mm Chip thickness : 480µm Pad size : 116µm × 116µm

LIGHT

ALM VDD2 VDD1

BAK

S3 P10 P11 P12 P13 P00 P01 P02 P03

COM3

SEG16

60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 62 63 64

1 2 3 4 5 6 7 8

9 10 11

12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

COM3

SEG17

SEG18

SEG15

SEG19

SEG14

SEG20

SEG13

SEG21

SEG12

SEG22

SEG11

SEG23

SEG10

SEG24

LC573914

[Note]

SEG9

SEG8

SEG25

SEG26

SEG7

SEG6

SEG5

SEG4

SEG3

SEG2

SEG1

COM2

TEST

RCOUT

RCIN

VSS

OSCOUT

OSCIN

RES

32HZ

CUP2

CUP1

COM1

SEG32

SEG27

SEG28

SEG29

SEG30

SEG31

No.6745-3/13

LC573914

Pad name and coordinates

Pad

PIN No.

5 1 BAK -1065 645 37 33 32HZ 1065 -505 6 2 S4 -1065 455 38 34 S2 1065 -380 7 3 S3 -1065 330 39 35 S1 1065 -255 8 4 P10 -1065 170 40 36 RES 1065 -130

9 5 P11 -1065 5 41 37 OSCIN 1065 -5 10 6 P12 -1065 -155 42 38 OSCOUT 1065 115 11 7 P13 -1065 -315 43 39 VSS 1065 300 12 8 P00 -1065 -475 44 40 RCIN 1065 490 13 9 P01 -1065 -635 45 41 RCOUT 1065 615 14 10 P02 -1065 -800 46 42 TEST 1065 740 15 11 P03 -1065 -960 47 43 COM2 1065 865 16 12 COM4 -1080 -1205 48 44 SEG1 1065 1005 17 13 SEG17 -940 -1205 49 45 SEG2 1075 1205 18 14 SEG18 -790 -1205 50 46 SEG3 935 1205 19 15 SEG19 -650 -1205 51 47 SEG4 810 1205 20 16 SEG20 -525 -1205 52 48 SEG5 685 1205 21 17 SEG21 -400 -1205 53 49 SEG6 560 1205 22 18 SEG22 -275 -1205 54 50 SEG7 435 1205 23 19 SEG23 -150 -1205 55 51 SEG8 310 1205 24 20 SEG24 -25 -1205 56 52 SEG9 185 1205 25 21 SEG25 100 -1205 57 53 SEG10 60 1205 26 22 SEG26 225 -1205 58 54 SEG11 -65 1205 27 23 SEG27 350 -1205 59 55 SEG12 -190 1205 28 24 SEG28 475 -1205 60 56 SEG13 -315 1205 29 25 SEG29 600 -1205 61 57 SEG14 -440 1205 30 26 SEG30 725 -1205 62 58 SEG15 -565 1205 31 27 SEG31 865 -1205 63 59 SEG16 -705 1205 32 28 SEG32 1065 -1185 64 60 COM3 -855 1205 33 29 COM1 1065 -1035 1 61 LIGHT -1065 1195 34 30 CUP1 1065 -895 2 62 ALM -1065 1070 35 31 CUP2 1065 -770 3 63 VDD2 -1065 895 36 32 T3 1065 -630 4 64 VDD1 -1065 770

No.

Pad

Name

The pad coordinates are such that the chip center is taken as the origin and the values for (X, Y) represent the coordinates of the center point of each pad. Substrate must be connected to VSS or left open.

Coordinates Coordinates QFP64

Xµm Yµm

QFP64

PIN No.

Pad No.

Pad

Name

Xµm Yµm

No.6745-4/13

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